Scheduling a job with Spring programmatically (with fixedRate set dynamically)

Using a Trigger you can calculate the next execution time on the fly.

Something like this should do the trick (adapted from the Javadoc for @EnableScheduling):

@Configuration@EnableSchedulingpublic class MyAppConfig implements SchedulingConfigurer {    @Autowired    Environment env;    @Bean    public MyBean myBean() {        return new MyBean();    }    @Bean(destroyMethod = "shutdown")    public Executor taskExecutor() {        return Executors.newScheduledThreadPool(100);    }    @Override    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {        taskRegistrar.setScheduler(taskExecutor());        taskRegistrar.addTriggerTask(                new Runnable() {                    @Override public void run() {                        myBean().getSchedule();                    }                },                new Trigger() {                    @Override public Date nextExecutionTime(TriggerContext triggerContext) {                        Calendar nextExecutionTime =  new GregorianCalendar();                        Date lastActualExecutionTime = triggerContext.lastActualExecutionTime();                        nextExecutionTime.setTime(lastActualExecutionTime != null ? lastActualExecutionTime : new Date());                        nextExecutionTime.add(Calendar.MILLISECOND, env.getProperty("myRate", Integer.class)); //you can get the value from wherever you want                        return nextExecutionTime.getTime();                    }                }        );    }}

You can also use Spring Expression Language (SpEL) for this.

Once this value is initialized, you won't be able to update this value.

@Scheduled(fixedRateString = "#{@applicationPropertyService.getApplicationProperty()}")public void getSchedule(){   System.out.println("in scheduled job");}@Servicepublic class ApplicationPropertyService {    public String getApplicationProperty(){        //get your value here        return "5000";    }}

Also you can use this simple approach:

private int refreshTickNumber = 10;private int tickNumber = 0; @Scheduled(fixedDelayString = "${some.rate}")public void nextStep() {    if (tickNumber < refreshTickNumber) {        tickNumber++;        return;    }    else {        tickNumber = 0;    }    // some code}

refreshTickNumber is fully configurable at runtime and can be used with @Value annotation.